J Radiol
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Chronic rhinosinusitis endoscopic surgery needs an accurate evaluation of diseases and paranasal sinus anatomic variations. High resolution CT by thin section (2 mm) allow this pre-operative assessment. ⋯ They are nasal septal deviation, pneumatization and paradoxical curvature of the middle turbinate, pneumatization of unciform process, Haller's cells, prominent agger nasi cell and ethmoid bulla. The endoscopic endonasal surgery landmarks, the individual morphologic variations, the topographic relations to the orbit and to the brain are also well shown by CT.
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Aneurysm of the ulnar artery is a distinct entity among the acrosyndromes of the forearm for at least four reasons. It can be considered as an occupational disease requiring legal declarations leading to indemnities and the cardiologist should be aware of the administrative procedures. ⋯ Actually, cases resulting from trauma provide a situation of experimental pathology; studying the haemodynamics involved has advanced our knowledge of Raynaud's disease. Traumatic aneurysms can be cured, not simply by occupational rehabilitation but also, in certain cases, by vascular repair surgery with removal of the aneurysm and recovery of arterial blood flow through a venous graft.